Thompson G K, Johnson M A, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 9020953 B2, 2015-01-19.
Anderson J P, Lee S K, Brown S R. "Method for the Synthesis of Methyl 5-chloro-1-(4-chlorophenyl)-4-oxo-1,4-dihydrocinnoline-3-carboxylate" [P]. US Patent, US 9475247 B2, 2016-07-19.
发明人高志强,林芳,陈志强. "A Process for Preparing High-Purity Methyl 5-chloro-1-(4-chlorophenyl)-4-oxo-1,4-dihydrocinnoline-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116325215 B, 授权公告日 2019-06-04.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2012, 1606, 8926-8952.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2013, 1835, (1), 7075-7086.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 5-chloro-1-(4-chlorophenyl)-4-oxo-1,4-dihydrocinnoline-3-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2012, 368, (12), 1450-1467.